57399366 has 8 divisors (see below), whose sum is σ = 114798744. Its totient is φ = 19133120.

The previous prime is 57399341. The next prime is 57399379. The reversal of 57399366 is 66399375.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

57399366 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4783275 + ... + 4783286.

It is an arithmetic number, because the mean of its divisors is an integer number (14349843).

Almost surely, 2^57399366 is an apocalyptic number.

57399366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57399366 is a wasteful number, since it uses less digits than its factorization.

57399366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9566566.

The product of its digits is 918540, while the sum is 48.

The square root of 57399366 is about 7576.2369287134. The cubic root of 57399366 is about 385.7468294313.

Subtracting 57399366 from its reverse (66399375), we obtain a palindrome (9000009).

The spelling of 57399366 in words is "fifty-seven million, three hundred ninety-nine thousand, three hundred sixty-six".